/*
 * Copyright 2017-2025 Lenses.io Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.lenses.streamreactor.connect.cloud.common.storage

trait ResultProcessors {

  protected def processObjectsAsFileMeta[SM <: FileMetadata](
    bucket:    String,
    prefix:    Option[String],
    objectSeq: Seq[SM],
  ): Option[ListOfMetadataResponse[SM]] =
    objectSeq
      .lastOption
      .map {
        last =>
          ListOfMetadataResponse[SM](
            bucket,
            prefix,
            objectSeq,
            last,
          )
      }

  protected def processAsKey[SM <: FileMetadata](
    bucket:    String,
    prefix:    Option[String],
    objectSeq: Seq[SM],
  ): Option[ListOfKeysResponse[SM]] =
    objectSeq.lastOption.map {
      last =>
        ListOfKeysResponse[SM](
          bucket,
          prefix,
          objectSeq.map(_.file),
          last,
        )
    }
}
